pure-waterBNC²³⁶²¹³⁺¹ 例句 The fluorescence spectra of taihu- water and water and pure-water induced by UV-light and its characteristic were studied experimentally by using SP2558 multifunctional spectrometer system. 利用 SP-2558多功能光谱测量系统，对太湖水、普通自来水和纯水在紫外光激励下产生的荧光光谱及其特性进行了实验研究。 dictall